Bought an Asus P5Q-E off eBay. supposedly working. Have tried two different LGA775 processors coupled with a Be Quiet!Dark Power Advanced PSU+Bfg 9800GT PCIe graphics card+OCZ HPC Reaper OC2-8500 ram sticks, out of the case before I build it, to test it is in fact working---no POST. Any ideas what may be causing this before I contact eBay to ask for a return? Thanks for any replies/help.